package com.example.aop;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
//标识
//@Retention(RetentionPolicy.RUNTIME)//执行时间
//@Target(ElementType.METHOD)//执行对象
//public @interface history {
//}
